Free spreadsheet apps are a cool idea, as long as you're comfortable with their limitations. Many are ad-supported, for instance, so expect part of your screen to be trying to sell you something. Upgrading to the paid version (when available) might be worth the ad relief and extra features you'll get in return. 
Also, working with a spreadsheet on any smartphone screen—even some of the bigger devices available now—can be a squinty affair, best for viewing or extremely basic data entry. Of the five mobile spreadsheet apps I tested, the best made it surprisingly easy to work with the data on a small screen. Free Spreadsheet

Free Spreadsheet is ad-supported, but you have enough room to enter and view formulas.To read this article in full or to leave a comment, please click here